DEV-221 DEV-270 minor update SensorMapsExample & update log print

Author: jyong15

ShimmerDriver/src/main/java/com/shimmerresearch/grpc/GrpcBLERadioByteTools.java

@@ -101,7 +101,7 @@ public int startServer() throws Exception {
 			try (BufferedReader reader = new BufferedReader(new InputStreamReader(runningProcess.getInputStream()))) {
 				String line;
 				while ((line = reader.readLine()) != null) {
-					System.out.println(line);
+					System.out.println("[BLEGrpcServer] " + line);
 				}
 			} catch (IOException e) {
 				// TODO Auto-generated catch block

ShimmerPCBasicExamples/src/main/java/com/shimmerresearch/simpleexamples/SensorMapsExample.java

@@ -90,6 +90,9 @@ public class SensorMapsExample extends BasicProcessWithCallBack {
 	 * @wbp.parser.entryPoint
 	 */
 	public void initialize() {
+		//Set the default port to 50052, this is used if the software cannot start the gRPC server automatically
+		BasicShimmerBluetoothManagerPc.mGRPCPort = 50052;
+		
 		frame = new JFrame("Shimmer SensorMaps Example");
 		frame.setBounds(100, 100, 1200, 591);
 		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);